Next-generation of satellite communication (SatCom) networks are expected to support extremely high data rates for a seamless integration into future large satellite-terrestrial networks. In view of the coming spectral limitations, the main challenge is to reduce the cost per bit, which can only be achieved by enhancing the spectral efficiency. In addition, the capability to quickly and flexibly assign radio resources according to the traffic demand distribution has become a must for future multibeam broadband satellite systems. This article presents the radio resource management problems encountered in the design of future broadband SatComs and provides a comprehensive overview of the available techniques to address such challenges. Firstly, we focus on the demand-matching formulation of the power and bandwidth assignment. Secondly, we present the scheduling design in practical multibeam satellite systems. Finally, a number of future challenges and the respective open research topics are described.

中文翻译：

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多波束卫星系统的无线电资源管理技术

下一代卫星通信 (SatCom) 网络有望支持极高的数据速率，以便无缝集成到未来的大型卫星地面网络中。鉴于即将到来的频谱限制，主要挑战是降低每比特成本，这只能通过提高频谱效率来实现。此外，根据业务需求分布快速灵活地分配无线资源的能力已成为未来多波束宽带卫星系统的必备条件。本文介绍了未来宽带卫星通信设计中遇到的无线电资源管理问题，并全面概述了应对此类挑战的可用技术。首先，我们关注功率和带宽分配的需求匹配公式。第二，我们介绍了实际多波束卫星系统中的调度设计。最后，描述了一些未来的挑战和各自的开放研究课题。